If you're going to get new hinges, I'd mortise them a little deeper. I've fixed a bunch of small clearance issues with that. Can't go too deep though or you get hinge side problems.
Check how deep the hinge mortise is on the doors, sometimes those can be shallow. Depends on how the shop built them to know how consistent the results are.
Also, check the astragal to make sure it's screwed tight against the door edge. When we built these in the shop, they came with glue strips and guys would depend on them too much and not get it screwed tight.
If there's any wood on the edges then you've got places to strip material off. I'd use a circular saw and trim an 1/8" off somewhere.
ZTMAN is prolly right too, and worth a call for sure.